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KING OF PRUSSIA RESEARCH & DEV

Overview
  • Total Patents
    12
About

KING OF PRUSSIA RESEARCH & DEV has a total of 12 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United States and Germany. Its main competitors in its focus markets mechanical elements, machines and chemical engineering are PHILADELPHIA GEAR CORP, KING OF PRUSSIA RES AND DEV CO and DODGE ADIEL Y.

Patent filings in countries

World map showing KING OF PRUSSIA RESEARCH & DEVs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Germany 2

Patent filings per year

Chart showing KING OF PRUSSIA RESEARCH & DEVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Denkowski Walter J 5
#2 Stratienko Andrew 4
#3 Liu John K 1
#4 Behnke Edward 1
#5 Kron Harold O 1

Latest patents

Publication Filing date Title
US3554337A Reverse locking clutch
US3580371A Self-synchronizing clutch
US3523599A Linear actuator with torque control
US3578876A Mixer
US3536302A Bearing lubrication for mixer shaft
US3524526A Overload limit switch for a valve actuator
US3505888A Rotary and linear dual motion valve operator
US3489469A Submerged bearing assembly
US3489419A Static pressure system for mechanical seals
US3518891A Fail-safe valve operator